code: def _join_commands(*commands):
      entry_point = ["bash", "-c"] if _IS_UNIX else ["cmd", "/c"]
      sep = " && " if _IS_UNIX else " & "
      return [*entry_point, sep.join(map(str, commands))]
  
file_path: mlflow/mlflow/utils/process.py
imports: import functools
  import os
  import subprocess
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: _join_commands() and returns: list